12654522636 has 48 divisors (see below), whose sum is σ = 34434086400. Its totient is φ = 3615576720.

The previous prime is 12654522593. The next prime is 12654522653. The reversal of 12654522636 is 63622545621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1533120 + ... + 1541351.

It is an arithmetic number, because the mean of its divisors is an integer number (717376800).

Almost surely, 2^12654522636 is an apocalyptic number.

It is an amenable number.

12654522636 is an abundant number, since it is smaller than the sum of its proper divisors (21779563764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12654522636 is a wasteful number, since it uses less digits than its factorization.

12654522636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074499 (or 3074483 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The spelling of 12654522636 in words is "twelve billion, six hundred fifty-four million, five hundred twenty-two thousand, six hundred thirty-six".